Airmaster Propeller System
The AP421CTF-WWR66U is a two blade propeller for use on small direct drive engines. Its configuration is clockwise/tractor with the addition of a feathering facility.
The performance gain from the AP4x constant speed hub, combined with the outstanding design of the Whirlwind U series blade, allows this propeller to perform over a very wide range of speeds. As such it is an extremely popular model, finding application on a wide range of aircraft.
Features include
Designed for small direct drive engines (like UL260iS)
High strength AP421 CS hub with steel retention components
Fast response from high precision Maxon servo drive
Wide operating speed range from Whirlwind U series profile blades
Hard wearing composite blade construction with inlaid Nickel leading edge protection
Easy to use AC200F electronic governor/controller
Easy installation with a wide range of pre-made installation kits